Antifreezing attachment for explosive-engine-cooling systems.



1,253,789. Patente l Jafifw, 1918.

V M. c. CONWE LL. ANTIFREEZING ATTACHMENT FOR EXFLOSIVE ENGINE COOLING SYSTEMS. APPLICATION FILED APR.9.I9I1. I

was 0. CON'WEIIL,

OF LABCHMONT, NEW YORK, ASSIGNOB TO LAURA E. OONWELL,

OF LARGHMONT, NEW YORK.

ANTIFREEZING ATTACHMENT FOR EXPLOSIVE-ENGINE-COOLING SYSTEMS.

Specification of Letters Patent.

Patented Jan. 15, 1918.

Application filed April 9, 1917. Serial No. 180,801.

To all whom it may concern:

Be it known that I, MYERS C. CONWELL, a citizen of the United States, residing at Larchmont, in the county of Westchester and State of New York, have invented new and useful Improvements in Antifreezing Attachments for Explosive-Engine'Cooling Systems, of which the following is a specification.

This invention is an improved means for heating the circulating or cooling fluid in an explosive engine and radiator.

One of the objects of the invention is to provide means whereby the cooling fluid is maintained at a temperature above the freezing point, and caused to circulate through the water jacket of the engine and the radiator. A further object is to provide an improved heating device capab e of being attached to the explosive engine circulating systems now in general use, without requiring alteration thereof. A further object is to provide an electrical heating device for the circulating system, which is capable of being connected up with the lighting system of a motor vehicle, or with any other source of electrical energy. a

The invention will be hereinafter fully set forth and particularly pointed out in the claim.

In the accompanying drawing Figure 1 is a diagrammatic view illustrating the circulating system of an automobile engine, with the invention applied thereto.

Fig. 2 is an enlarged detail view illustrating v venting damage to the the heating device in longitudinal section.

Referrin to the drawing, 10 designates the exploslve engine or motor of an automobile, 11 the water jacket thereof, and 12 the radiator. A piece of flexible hose 13 communicates with the interior of the water jacket 11, and a similar piece of hose 14, communicates with the radiator 12.

The heating device comprises a metal tube or spool 15, open at both ends, which ends are inserted into the free ends of the respective pieces of hose 13 and 14, whereby the latter are connected, and a conduit, between the radiator and the water jacket is provided. Said spool is provided with spaced apart immovable annular flanges 16, spaced from the ends of the tube, whereby said ends form nipples capable of entering the ends of hose 13 and 14. A coil of resistance wire 17 is wrapped around the spool, between the flanges, filling the space between the flanges to a thickness approximating the diameter of the flanges. Said resistance wire is provided with terminals 17 connected with a plug 18, of any desired construction, capable of engaging a socket connected with the lighting system of the vehicle, and located at any pointwhich may be found convenient, or it may be attached to a socket connected with the lighting system of the garage. A sheet of non-conducting material 19 surrounding coil 17, prevents radiation of heat therefrom. V

In practice, when the engine is not in operation, and it is desired to prevent freezing of the circulating fluid, the plug 18 is attached to the lighting system or to the lightmg system of the garage, a5 may be desired. As the current passes through the wire 17 the spool 15 becomes heated, thereby raising the temperature of the water within the connection between the radiator and the water jacket. Just as soon as the Water commences to rise in temperature a circulation of the water in the cooling system is set up, and said circulation is maintained as long as the current is passing through the heating coil. In this manner the temperature of the fluid is maintained above the freezing point throughout the entire 5 stem, thereby preatter, which might otherwise occur if the temperature of the water should be allowed to fall in freezing weather.

Having thus explained the nature of the invention, and described an operative manner of constructing and using the same, although without attempting to set rorth all of the forms in which it maybe made, or

' the following is all of, the forms of its use, claimed An anti-freezing attachment for explosiife engine cooling systems consisting solely a tube of unithroughout and of the following elements, form thickness and diameter open at both ends, said tube being provided of the coil being approximately equal to the with two spaced apart stationary annular diameter of the flanges, and means whereby flanges, said flan es being also spaced from said resistanc may be connected with a 10 the ends of the tu e, whereby said endsserve source of electrical energy.

5 as nipples to enter the ends of contiguous In testimony whereof I have hereunto set tubing; a, coil of resistance wire encircling my hand. said tube between said flanges, the diameter 7 MYERS C. CONWELL. 

